Zinus Core Comfort 6" Tight Top Innerspring review

Zinus sells this 6-inch Core Comfort innerspring through Walmart.com, and at $68.88 for a twin when we checked it was the cheapest mattress on this list by about $20. The listing describes a firm tight top over a Bonnell coil innerspring base and foam, sized for bunk beds, trundles, daybeds and other tight rooms. The twin measures 75 by 39 by 6 inches and is rated for a maximum load of 250 lbs. The foam is CertiPUR-US certified and the cover is OEKO-TEX certified. It ships compressed, so allow 24 to 72 hours for it to expand before a child sleeps on it. A firm coil top suits back and stomach sleepers and many children, but side sleepers may want the Linenspa or Novilla foam picks instead. Returns run through Walmart's free 90-day policy rather than a maker sleep trial.

Who it is for

the lowest price on a coil mattress

Price

Twin $68.88 on Walmart.com when checked.

Current price is USD $68.88
Quoted from the vendor pricing page on November 11, 2026.

Key features

• Twin is 75 x 39 x 6 inches
• Firm tight top over a Bonnell coil innerspring base and foam
• Listing names bunk beds, trundles and daybeds as intended uses
• CertiPUR-US certified foam and an OEKO-TEX certified cover
• 250 lb maximum load for the twin

Strengths and weaknesses

• Strength: Cheapest mattress on this list at $68.88
• Strength: Coil base keeps more bounce than all-foam models
• Strength: Free 90-day returns through Walmart.com
• Weakness: Firm tight top with little cushioning
• Weakness: Thinnest comfort layer of the coil picks
• Weakness: Twin XL was out of stock when checked

Key facts

• Price: $68.88 twin when checked
• Height: 6 in
• Core: Bonnell coils and foam
• Max load: 250 lbs (twin)

Where it ranks

Zinus Core Comfort 6" Tight Top Innerspring is No. 3 in our Best Bunk Bed Mattresses verdict.